Siem Reap weather in May 2027

Expect daytime maximum temperatures of 34°C in Siem Reap, Cambodia in May and extreme heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 15 days with some rainfall and typically 146 mm of rainfall in the month.

  • 34°C maximum daytime temperature in May in Siem Reap34
    34°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in May in Siem Reap15
    15 days with some rainfall
  • 25°C minimum night-time temperature in May in Siem Reap25
    25°C min night temperature
  • 13 hours of daylight per day in May in Siem Reap13
    13 hours of daylight per day
  • Extreme heat & humidity in May in Siem ReapE
    Extreme heat & humidity
  • 146 mm monthly rainfall in May in Siem Reap146
    146 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Siem Reap11
    11+ (Extreme) UV index

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The May weather guide for Cambodia (Siem Reap) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

More about Cambodia

How hot is it in Siem Reap in May?

Daytime temperatures usually reach 34°C in Siem Reap in May with extreme heat and humidity, falling to 25°C at night.

How sunny is it in Siem Reap in May?

There are normally 7 hours of bright sunshine each day in Siem Reap in May - that's 54% of daylight hours.

Does it rain in Siem Reap in May?

There are usually 15 days with some rain in Siem Reap in May and the average monthly rainfall is 166mm.

Siem Reap May sunrise & sunset times

Browse the sunrise and sunset times for Siem Reap in May 2027. Select a month to view Siem Reap sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st May 2027 05:44 18:20
Sunday, 16th May 2027 05:39 18:23
Monday, 31st May 2027 05:37 18:28

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